How To Update LG Optimus 3D P920 with Ice Cream Sandwich Android 4.0 Firmware

Procedure to update Ice Cream Sandwich 4.0 on LG Optimus 3D:

  • First up you need to download the Ice Cream Sandwich 4.0 Firmware Zip to your computer. Once it’s downloaded, you will now need to proceed to connect the phone to the computer using the USB cable which you got at the time of purchase.
  • So, once you are done with the downloading, you need to copy this downloaded zip file as it to your phone without modifying or renaming the file. Once you copy the same, you now need to download the ROM Manager application in your phone.
  • The ROM Manager can be installed from the Android Market Place. Now, once you downloaded and installed the ROM Manager application, you need to open the same and then select the option of “Flash Clock Work Mod Recovery” to flash the same.
  • Once you are done with this, you now need to create a backup of your current ROM which you can do by selecting the option of “Backup Current ROM” in the ROM Manager so that you can then revert back to the Stock original version just in case if you face any issues with the new Ice Cream Sandwich ROM as its in the beta stage.

ROM Manager backup Restore

  • After this select the option of “Install ROM from SD Card” and then you will have to choose the zip file of “IceCREAMSandwich4.0_for_LGOptimus3D_KingROM” after which the process of the firmware update will be commencing.
  • After a period of around 5 – 8 minutes, the firmware update process will be finished and then you will see that the device will be restarted on its own, if not then you need to select “++++ Go Back ++++” to get back to the main menu and then choose to “reboot system now” to restart the phone.
  • Just in case if you are facing issues like the Force Close errors then you need to select the options Wipe data/factory reset, Wipe Cache partition and then choose reboot system now to restart the phone and to enjoy this all new firmware.

Do let us know just in case if you face any issues in the comments section below as we will try our level best to help you. So, in this way you have easily updated your LG Optimus 3D smart phone with the latest version of Android Ice Cream Sandwich 4.0 version.


  1. hi ,when i finished the upgrade proccess my lg p920 couldnt read my sim card and the is no gsm network how can i fix this problem please

  2. Can i put this room on su760. Thx

  3. Does it have arabic ??

  4. Can i have the download link for the firmware??… it not working..!!!

  5. Zip is corrupted, and don’t tell me to redownload cause I have a business connection with 0 issues with everything else on the web, so frankly this makes me weary of loading this up onto my phone. And I so want ICS damnit.

  6. This is not the offical ICS OS Fools but a Rom !!!! Now your fucked over and cant even have the phone repaired under warrantie !!!!

  7. OMG i just put it on my phone, n now it has random flashing boxes and i can’t click on anything, Can any one please help? thanks

  8. Jordane Quissanga

    I did all steps mencioned here, step by step, or from begin to the end. The diference that I saw is all pictures posted on this website is very very diferent from the phone, I do not why.

    I agree with Vortecduramax, Bara 93, tyler wewsecv, almost said the same thing, I just don’t know what is wrong with KING 3D ROM, even I cannot find out its official website. Now, my phone is broken ’cause of it. It does not power on anymore.

    I’ll send it to Lisbon, Portugal, to be repaired for free without any fee/charge/fare.

    I just wish much luck for who has it on phone and it runs normally, my best.

  9. The zip file was corrupted

  10. I have V21b without any sd card mounted and just maked factory settings, it stop at step #6 as any other guide i’ve tryed until now… please help!!! T T

  11. The file is asking for an password , HELP!

  12. Hi, when i open the ice cream zip file it was asking for an password help ?

  13. Hey,

    Is this just the Alpha or Beta version or full? Does this has any bugs like inpossibility to use vibration, wlan etc?

    And if it doesnt work and my O3D crashs, am i able to “rescue” it?

    Sry for bad english.

  14. ok i tiried this on on my lg p920 3d and after 3 times it stil wont work.
    my rom version was original and my phone was rooted.

    any idea’s are welcome

    • First thing disable any Voodoo tools on your phone if any.

      Follow the steps carefully in page 2, if you miss single step it will not be updated.

      Thanks You!

  15. Can’t believe Android Advices would fall for this rom being ICS.. meh, trashes your credibility guys….

    Is a Froyo Rom with custom themes.

  16. So…what should I do if my LG Optimus 3D P920 has randomly said it wanted to >>UPDATE<< (Not mentioning software or firmware) and won't let me do anything? I've tried taking the SIM out and turning it back on and off, but nothing seems to work=/ ANY IDEAS PLEASE!!! If it's broken I'm screwed=//

  17. THIS IS FAKE !!!!
    The rom is froyo with custom IC teme !!!!!

  18. how can i update my LG optimus Black P970 to ICE CREAM SANDWICH can some one guide me

  19. This rom is not Ice cream sandwich – it’s theme!
    And this archive is broken!
    you can find KING_3D_ROM_v2.3 by KING4Developers.
    It’s the most recent ROM for LG 3d.

  20. Hi, i have LG Optimus 3D P925g.
    My phone is rooted.
    I did the same things.
    And I have the same error message:
    \Can’t open /emmc/
    Installation aborted.\

    Please suggest.

  21. I:Update location: /emmc/
    Opening update package…
    Missed a central dir sig (at 0)
    E:Can’t open /emmc/
    Installation aborted.

    Is it something wrong about the zip file?

  22. I’ve followed all the instructions. My phone is rooted.
    When I run the install rom from SD card, the phone reboots, accesses the ICS rom and then give me:
    Can’t open /emmc/
    Installation aborted.

    I have downloaded the rom twice.
    The size of both are 277MB.

    If I try to unzip the rom on my PC it says unexpected end of archive.

  23. computer says ics zip folder is empty? will not install?

  24. Is anyone used this zip file and upgrade to ICS successfully with p920?

  25. please hellp?????

  26. root the phone with super one click tool already.
    not quite sure what you mean by giving super user access.

  27. hi
    after installing Work Mod cell phone LG optimus 3D does’nt turn on.please help me.
    what should i do?

  28. I:Update location: /emmc/
    Opening update package…
    Missed a central dir sig (at 0)
    E:Can’t open /emmc/
    Installation aborted.

    Is it something wrong about the zip file?

  29. cant get past the last step keeps aborting while opening the package not sur if file is corrupt or not any help greatly appreciated.

  30. Awweeee….. It Worked On My Samsung Galaxy Y……….Amazing

  31. I got this message:

    E: Can’t open /emmc/
    Installation aborted

    Any thoughts?

  32. Can I root the Canadian LG Optimus 3D with these instructions? It has a different model number: LG-P925G
    If not, are there instruction to root it? Sorry, but I couldn’t find any.


  33. This is Ice Cream Sandwitch theme created by me, for our rom (King_3D_ROM).

  34. Hi, LG 3D doesn’t install THIS ROM so yesterday evening i try to install the famous KING ROM 3D 2.2..and it’s OK !

    There is anyone that try this (and explain us if this started immediately or what to do) ?

  35. how can I upgrade lg p970? or can I use this?

  36. nothing to do, neither with data+cache & dalvik clean ! :o(

    everything appear to be ok at restart (ok..ok..) then my phone reboot immediately (i think with an error): where can i find LOG file?